Global Patent Index - EP 0621610 A3

EP 0621610 A3 19951011 - Process for heat treatment of high temperature superconductors in silver-containing tubes.

Title (en)

Process for heat treatment of high temperature superconductors in silver-containing tubes.

Title (de)

Verfahren zur Wärmebehandlung von Hochtemperatur-Supraleitern in silberhaltigen Rohren.

Title (fr)

Procédé de traitement thermique des supraconducteurs à haute température dans des tubes contenant de l'argent.

Publication

EP 0621610 A3 19951011 (DE)

Application

EP 94104647 A 19940324

Priority

DE 4312935 A 19930421

Abstract (en)

[origin: EP0621610A2] In the case of a superconductor having a silver sheath, fusing and thus a reduction in the superconductor material in the silver sheath is reduced or prevented by heat treatments being carried out under an oxygen partial pressure below 10 mbar and, preferably, using an insulating material having more than 60% of aluminium oxide in the insulating fibres. This makes it possible to produce greater lengths of fault-free composite conductors composed of superconductor material containing the phase which comprises two copper oxide planes, employing Bi-Sr-Ca-Cu-O phases. <IMAGE>

IPC 1-7

H01B 12/04; H01L 39/24

IPC 8 full level

B28B 1/00 (2006.01); C01G 1/00 (2006.01); C01G 29/00 (2006.01); C04B 35/00 (2006.01); C04B 35/45 (2006.01); H01B 12/04 (2006.01); H01B 13/00 (2006.01); H10N 60/01 (2023.01)

CPC (source: EP)

H10N 60/0801 (2023.02)

Citation (search report)

  • [XY] WO 9100622 A1 19910110 - UNISEARCH LTD [AU]
  • [DA] DE 3835242 A1 19900419 - VACUUMSCHMELZE GMBH [DE]
  • [A] EP 0449161 A2 19911002 - SUMITOMO ELECTRIC INDUSTRIES [JP]
  • [PX] US 5223478 A 19930629 - WHITLOW GRAHAM A [US], et al
  • [Y] DATABASE WPI Derwent World Patents Index; AN 92-395761 & PATENT ABSTRACTS OF JAPAN vol. 17, no. 115 (E - 1330) 10 March 1993 (1993-03-10)
  • [DYA] W. ZHU ET AL, APPLIED PHYSICS LETTERS, vol. 61, no. 6, 10 August 1992 (1992-08-10), NEW YORK US, pages 717 - 719
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 17, no. 150 (E - 1339) 25 March 1993 (1993-03-25)
  • [E] DATABASE WPI Derwent World Patents Index; AN 95-128118

Designated contracting state (EPC)

CH DE FR GB IT LI

DOCDB simple family (publication)

EP 0621610 A2 19941026; EP 0621610 A3 19951011; EP 0621610 B1 19990310; DE 4312935 A1 19941027; DE 59407894 D1 19990415; JP 3614461 B2 20050126; JP H06321622 A 19941122

DOCDB simple family (application)

EP 94104647 A 19940324; DE 4312935 A 19930421; DE 59407894 T 19940324; JP 9696494 A 19940411